Rotstein DL, Healy BC, Malik MT, Chitnis T, Weiner HL. Evaluation of no evidence of disease activity in a 7-year longitudinal multiple sclerosis cohort. JAMA Neurol. 2015 Feb;72(2):152-8
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Do DMT cause NEDA in Relapsing MS, yes they can do and some are better than others. The best appears to be HSCT telling us that relapsing disease is driven by the actions of the immune system
Do the same DMT cause NEDA in progressive MS. I think the current view is that they probably do not do this at least quickly (using lower limb function as an out come) as evidenced with rituximab, alemtuzumab, caldribine and HSCT, because progressive MS appears to require a different approach to treatment (although some with say Singolimod), not to say that pwProgressive MS will not loose disease activity with such treatments as they do and that has been seen in trials (fingolimod & rituximab etc).